Commit 9387f774 authored Aug 06, 2011 by Borislav Petkov Committed by H. Peter Anvin Aug 06, 2011

x86-32, amd: Move va_align definition to unbreak 32-bit build



hpa reported that dfb09f9b breaks 32-bit
builds with the following error message:

/home/hpa/kernel/linux-tip.cpu/arch/x86/kernel/cpu/amd.c:437: undefined
reference to `va_align'
/home/hpa/kernel/linux-tip.cpu/arch/x86/kernel/cpu/amd.c:436: undefined
reference to `va_align'

This is due to the fact that va_align is a global in a 64-bit only
compilation unit. Move it to mmap.c where it is visible to both
subarches.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/1312633899-1131-1-git-send-email-bp@amd64.org


Signed-off-by: H. Peter Anvin <hpa@zytor.com>

parent 8fa8b035

arch/x86/kernel/sys_x86_64.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -18,10 +18,6 @@
		#include <asm/ia32.h>
		#include <asm/syscalls.h>

		struct __read_mostly va_alignment va_align = {
		.flags = -1,
		};

		/*
		* Align a virtual address to avoid aliasing in the I$ on AMD F15h.
		*

arch/x86/mm/mmap.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -31,6 +31,10 @@
		#include <linux/sched.h>
		#include <asm/elf.h>

		struct __read_mostly va_alignment va_align = {
		.flags = -1,
		};

		static unsigned int stack_maxrandom_size(void)
		{
		unsigned int max = 0;
		@@ -42,7 +46,6 @@ static unsigned int stack_maxrandom_size(void)
		return max;
		}


		/*
		* Top of mmap area (just below the process stack).
		*